Automatic fan.



PATENTED FEB.

J. MASON. AUTOMATIC FAN. APPLIG'ATION FILED MAR.6, 1907.

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'PATENTED FEB. 11

J. MASON. AUTOMATIC FAN. APPLIUATION rum) MAR. 6, 1pm.

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JOHN MASON, OF wI MiNe'roN, DELAWARE, ASSIGNOR or ONE-HALF TO JOHN F.MALLOY, or WILMINGTON, DELAWARE.

AUTOMATIC FAN.

Patented Feb. 11, 1908.

T 0 all whom it may concern:

Be it known that I, JOHN MAsoN, of Wilmington, in the county ofNewcastle and,

State of Delaware, have invented certain new and useful Im rovements inAutomatic Fans; and I do iereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to makeand use thesame.

The objects of this invention are to provide a mechanically operated fanprimarily designed to be attached to bedsteads, and which will be simplein construction; noiseless in operation; capable of bping readily andeasily started and stopped; whose speed may be regulated at will; andwhich may be applied to bed frames of various styles or patterns.

The invention will be hereinafter fully set forth and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective showingthe application of my invention to a bed frame. Fig. 2 is an enlargedview with the inclosing casing in section. Fig. 3 is a view at rightangles to Fig. 2, with a portion of the casin in section. Fig. 4 is aview in perspective of the drum, the stop-bar and the means foractuating the latter. Fig. 5 is an enlarged transverse sectional view ofthe bed engaging clam Fig. 6 is a similar view showing one of t e partsof the clamp reversed.

Referring to the drawings, 1 designates a fan; 2 'an approximatelyhorizontally dis- "posed arm to the outer end ofwhich the fan isadjustably secured; 3 a vertically disposed shaft upon the upper end ofwhich the arm'2 is mounted, or, if desired, the arm and shaft may beformed in one piece. This shaft carries a gear pinion 4c'which mesheswith a segmental rack bar 5 carried by an arm 6 having a pivot bearingat its lower end. This arm 6 at its upper end has a pin 8 projectingtherefrom, and fitting in a groove 9 of a drum 10. The formation of thisgroove is such that in a single revolution of the drum the arm 6 will bereciprocated once in each direction, and hence the fan carrying arm willlikewise be reciprocated from each side of a bed to the other.

Any suitable motor may be employed for efiecting the rotation of drum10. I have, at 12, indicated a conventional form of motor,

the movement of which is transmitted by suitable gearing to a gear-wheel13 on one end of the shaft of drum 10. This drum carries at one end twodiametrically disposed lugs or shoulders 14.

15 designates a stop bar, which, when elevated, will be in the path oftravel oflugs 14, and will arrest the motion of the drum and motor. Ihave shown this stop bar as being vertically disposed on an upright 16of the supporting frame. Normally it is held depressed out of the pathof the lugs by a spring 17 which holds it against either of the sides ofa double cam plate 18 mounted on a short shaft 19, which shaft carries arectangular plate 20 having teeth at its four corners. A spring-heldslide 21 has a lateral linger which normally liesover one of theseteeth. By pulling downwardly on slide 21 plate 20 and cam plate 18 willbe turned one quarter revolution. This will effect the elevation of thestop bar into the path of the lugs of the drum. To restart the devi ce,the operator again pulls on slide 21, turning plate 20 and cam 18 so asto permit of the lowering of the stop bar. By using two stops on thegrooved drum, the finger may be stopped spring 22 which acts on theslide 21 to normally hold it elevated, retains said slide against a stop23, with its finger directly above one of the teeth of plate 20.manipulation of the slide is effected by a tassled or other ornamentalcord connected thereto.

The speed of actuation of the fan ma be controlled by a suitable brake.The orm shown embodies two corresponding members 2 1 located on oppositesides of one of the arbors of the motor gearing and having a bindingscrew 25 at their upper ends. By adjusting this screw the speed may beregulated.

The device above described is preferably mounted in a box or casing 26,usually of ornamental appearance, and supported by an arm 27 clamped tothe head of a bed frame. The clamp employed by me ordinarily comprisestwo corresponding V-members, faced with felt, or other soft material,such members being united by thumb screws 28. But as it is frequentlydesirable, with high-priced beds, to secure a minimum of contact betweena clamp and the bed frame, the lower member of the clamp is formed atThe ' at either side close to the head of the bed. A

its vertex, on the outside, with a covered bearing flange or plate 29,so that when such member is inverted, as shown in Fig. 6, the device maybe secured to the frame with but a minimum of contact.

I claim as my invention 1. An automatic fan comprising a motor, a drumactuated thereby, a reciprocating fancarrying member actuated by therevolutions of said drum, a stop normally out of engagement with saiddrum, and means for actuating said stop for arresting the rotation ofsaid drum.

2. An automatic fan comprising a motor,-a drum actuated thereby, areciprocating fancarrying arm, oscillating mechanism actuated by saiddrum and by which said arm is reciprocated, a stop normally out ofengagement with said drum, and means for actuating said stop forarresting the rotation of said drum. I

3. An automatic fan comprising a motor, a drum actuated thereby having acircumferential groove, a pivoted arm having a pin projecting into saidgroove, a segmental rackbar carried by said arm, a shaft having agear-pinion in mesh with said rack-bar, and a fan-carrying arm actuatedby said shaft.

4. The combination with a motor, of a drum actuated thereby having acircumferential groove, an oscillating arm having a pin projecting intosaid groove, a segmental rack-bar carried by said arm, a shaft having agear-pinion in mesh with said rack-bar, a fan-carrying arm mounted onsaid shaft, a stop normally out of engagement with said drum, and meansfor actuating said stop for.

arresting the rotation of said drum.

5. The combination with a motor, of a drum actuated thereby, afan-carrying arm, means actuated by said drum for oscillating said arm,a spring-held stop-bar for arresting said drum, and means for actuatingsaid stopbar to cause it to engage said drum.

6. The combination with a motor, of a drum actuated thereby having acircumferential groove, a lug projecting from said drum, a fan-carryingarm, a shaft having a gear-pinion, an oscillating arm having a segmentalrack-bar meshing with said pinion, a pin projecting from said arm intosaid groove, a stop-bar, and means for holding said stop bar in the pathof travel of said lug.

7. The combination with a motor, of a having a segmental rackbar meshingwith said pinion, a pin projecting from said arm into said groove, astop-bar, and means for holding said stop-bar in the path of travel ofsaid lugs.

8. The combination with a motor and a drum actuated thereby having lugsprojecting therefrom, of a fan-carrying arm, means actuated by said drumfor oscillating said arm, a stop-bar, a cam-plate for moving saidstop-bar in one direction, a spring acting on said stop-bar, and meansfor actuating said cam-plate.

9. The combination with a motor, and a drum actuated thereby having lugsprojecting therefrom, of a fan-carrying arm, means actuated by said drumfor oscillating said arm, a spring-held stop-bar, a cam-plate forraising said stop-bar into the path of travel of said lugs, a secondplate movable with said cam-plate, and a spring-held slide for engagingsaid second plate for effecting the turning of said cam-plate. I

10. The combination with a motor, and a drum actuated thereby, of astop-bar, a spring acting thereon, a plate having opposite fiat edgesand opposite cam portions, a second plate movable with the first mentioned plate, said second plate being of rectangular formation andhaving teeth at its corners, and a spring-held slide having a finger forengaging said teeth and effecting the turning of said cam-plate;

11. In an automatic fan, the combination with an oscillating arm, amotor, and means actuated by the latter for effecting the oscilla tionof said arm, of an inclosing casing, a clamp secured to said casing andcomposed of corresponding V-shaped members, and binding screws, one ofsaid V-shaped members, having at its vertex, a second bearing surface.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

JOHN MASON.

T/Vitnesses:

FRANCIS S. MAGUIRE, VERNON E. WEST.

